Question 1

What happens to the hemoglobin's ability to transport oxygen (O2) when carbon monoxide (CO) is bound to it?

Accepted Answer

A) It decreases. 
B) It increases. 
C) It remains the same. 
D) It varies from person to person. 
A) It decreases. 
B) It increases. 
C) It remains the same. 
D) It varies from person to person.

Question 2

In the following reaction: HA ⇌ H+ + A- , what is the pH value if [HA] = 0.300 M and K = 1 × 10-5?

Accepted Answer

A) 8.24 
B) 0.30 
C) 5.52 
D) 2.76 
A) 8.24 
B) 0.30 
C) 5.52 
D) 2.76

Question 3

What is the value of [HAc] in the reaction HAc ⇌ H+ + Ac- , if the K = 47.0 and the [H] = 0.350 M?

Accepted Answer

A) 5.76 M 
B) 0.123 M 
C) 0.003 M 
D) 47.0 M 
A) 5.76 M 
B) 0.123 M 
C) 0.003 M 
D) 47.0 M

Question 4

Over time, what do the concentrations of reactants and products become in a dynamic equilibrium?

Accepted Answer

A) Equal 
B) Constant 
C) Zero 
D) Infinite 
A) Equal 
B) Constant 
C) Zero 
D) Infinite

Question 5

What does aerobic respiration of glucose produce in the first step?

Accepted Answer

A) Lactic acid 
B) Lactate 
C) Pyruvate 
D) Gluconate 
A) Lactic acid 
B) Lactate 
C) Pyruvate 
D) Gluconate

Question 6

What is [HA] in the reaction HA ⇌ H+ + A- , when [H+] = 0.23 M and K = 1.8?

Accepted Answer

A) 0.128 M 
B) 0.053 M 
C) 0.029 M 
D) 0.100 M 
A) 0.128 M 
B) 0.053 M 
C) 0.029 M 
D) 0.100 M

Question 7

What occurs in a dynamic equilibrium, even though there is no apparent change in the system?

Accepted Answer

A) The forward reaction continues 
B) The reverse reaction continues 
C) Both of the above 
D) None of the above 
A) The forward reaction continues 
B) The reverse reaction continues 
C) Both of the above 
D) None of the above

Question 8

What is K for the following reaction: HBr ⇌ H+ + Br- , if [HBr] = 0.50 M and the pH = 2.0?

Accepted Answer

A) 0.0002 
B) 0.0001 
C) 0.0010 
D) 0.0020 
A) 0.0002 
B) 0.0001 
C) 0.0010 
D) 0.0020

Question 9

What two molecules is hemoglobin designed to transport?

Accepted Answer

A) Oxygen and water 
B) Carbon monoxide and oxygen 
C) Carbon dioxide and oxygen 
D) Carbon dioxide and water 
A) Oxygen and water 
B) Carbon monoxide and oxygen 
C) Carbon dioxide and oxygen 
D) Carbon dioxide and water

Question 10

The equilibrium constant, K, is a measure of product concentration terms divided by reactant concentration terms.

Accepted Answer

A) True 
 B)False

Question 11

How does the presence of a catalyst affect an equilibrium system?

Accepted Answer

A) It lowers the activation energy of the forward reaction. 
B) It lowers the activation energy for both reactions. 
C) It lowers the activation energy of the reverse reaction. 
D) It has no effect. 
A) It lowers the activation energy of the forward reaction. 
B) It lowers the activation energy for both reactions. 
C) It lowers the activation energy of the reverse reaction. 
D) It has no effect.

Question 12

In the reaction HCl ⇌ H+ + Cl- , what is the value of K if [HCl] = 0.001 M and [Cl-] = [H+] = 0.20 M?

Accepted Answer

A) 0.04 
B) 40.0 
C) 0.20 
D) None of the above 
A) 0.04 
B) 40.0 
C) 0.20 
D) None of the above

Question 13

What does the equilibrium constant represent in an equilibrium equation?

Accepted Answer

[products]

Question 14

What is the value of K in the equilibrium reaction HA ⇌ H+ + A- if [H+] = 0.020 M and [HA] = 0.200 M?

Accepted Answer

A) 0.0200 
B) 0.0008 
C) 0.0020 
D) 0.0004 
A) 0.0200 
B) 0.0008 
C) 0.0020 
D) 0.0004

Question 15

When does the body utilize anaerobic respiration?

Accepted Answer

A) Only when electrolytes are present 
B) At all times 
C) When sufficient oxygen is supplied to cells during exercise or activity 
D) When energy expenditure outpaces the supply of oxygen 
A) Only when electrolytes are present 
B) At all times 
C) When sufficient oxygen is supplied to cells during exercise or activity 
D) When energy expenditure outpaces the supply of oxygen

Question 16

What is another name for the equilibrium constant?

Accepted Answer

A) The stability constant 
B) The association constant 
C) The binding constant 
D) All of the above 
A) The stability constant 
B) The association constant 
C) The binding constant 
D) All of the above

Question 17

In the following reaction: HA ⇌ H+ + A- , what will the pH value be if [HA] = 0.150 M and K = 5.2 × 10-9?

Accepted Answer

A) 2.79 
B) 4.55 
C) 7.80 
D) 5.20 
A) 2.79 
B) 4.55 
C) 7.80 
D) 5.20

Question 18

Why are poisons always an organic or inorganic compound?

Accepted Answer

A) Because these compounds have optimal interaction with cells 
B) Because such compounds are the correct size for cellular interactions 
C) Because such compounds have the correct polarity to interact with proteins 
D) They aren't; pure elements can be poisons too. 
A) Because these compounds have optimal interaction with cells 
B) Because such compounds are the correct size for cellular interactions 
C) Because such compounds have the correct polarity to interact with proteins 
D) They aren't; pure elements can be poisons too.

Question 19

What is the value of K in the reaction HA ⇌ H+ + A- if [HA] = 0.001 M and [A-] = [H+] = 0.020 M?

Accepted Answer

A) 0.0004 
B) 4.0 × 10-7 
C) 0.200 
D) 0.400 
A) 0.0004 
B) 4.0 × 10-7 
C) 0.200 
D) 0.400

Question 20

What is the equilibrium expression for the reaction HA ⇌ H+ + A- ?

Accepted Answer

A) K = [HA] / [H+][A-] 
B) K = [H-][A+] / [HA] 
C) K = [HA] / [H-][A+] 
D) K = [H+][A-] / [HA] 
A) K = [HA] / [H+][A-] 
B) K = [H-][A+] / [HA] 
C) K = [HA] / [H-][A+] 
D) K = [H+][A-] / [HA]

What happens to the hemoglobin's ability to transport oxygen (O₂) when carbon monoxide (CO) is bound to it?

In the following reaction: HA ⇌ H⁺ + A^- , what is the pH value if [HA] = 0.300 M and K = 1 × 10^-5?

What is the value of [HAc] in the reaction HAc ⇌ H⁺ + Ac^- , if the K = 47.0 and the [H] = 0.350 M?

Over time, what do the concentrations of reactants and products become in a dynamic equilibrium?

What does aerobic respiration of glucose produce in the first step?

What is [HA] in the reaction HA ⇌ H⁺ + A^- , when [H⁺] = 0.23 M and K = 1.8?

What occurs in a dynamic equilibrium, even though there is no apparent change in the system?

What is K for the following reaction: HBr ⇌ H⁺ + Br^- , if [HBr] = 0.50 M and the pH = 2.0?

What two molecules is hemoglobin designed to transport?

The equilibrium constant, K, is a measure of product concentration terms divided by reactant concentration terms.

How does the presence of a catalyst affect an equilibrium system?

In the reaction HCl ⇌ H⁺ + Cl^- , what is the value of K if [HCl] = 0.001 M and [Cl^-] = [H⁺] = 0.20 M?

What does the equilibrium constant represent in an equilibrium equation?

What is the value of K in the equilibrium reaction HA ⇌ H⁺ + A^- if [H⁺] = 0.020 M and [HA] = 0.200 M?

When does the body utilize anaerobic respiration?

What is another name for the equilibrium constant?

In the following reaction: HA ⇌ H⁺ + A^- , what will the pH value be if [HA] = 0.150 M and K = 5.2 × 10^-9?

Why are poisons always an organic or inorganic compound?

What is the value of K in the reaction HA ⇌ H⁺ + A^- if [HA] = 0.001 M and [A^-] = [H⁺] = 0.020 M?

What is the equilibrium expression for the reaction HA ⇌ H⁺ + A^- ?

Understanding Our World With Chemistry

Matter: Properties, Changes and Measurements

Understanding Atoms

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Chemistry of Bonding: Structure and Function of Drug Molecules

Aqueous Solutions: Part I

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Organic Chemistry and Polymers

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Introduction to Biochemistry

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Exam 13: Chemical Equilibrium

What happens to the hemoglobin's ability to transport oxygen (O2) when carbon monoxide (CO) is bound to it?

In the following reaction: HA ⇌ H+ + A- , what is the pH value if [HA] = 0.300 M and K = 1 × 10-5?

What is the value of [HAc] in the reaction HAc ⇌ H+ + Ac- , if the K = 47.0 and the [H] = 0.350 M?

Over time, what do the concentrations of reactants and products become in a dynamic equilibrium?

What does aerobic respiration of glucose produce in the first step?

What is [HA] in the reaction HA ⇌ H+ + A- , when [H+] = 0.23 M and K = 1.8?

What occurs in a dynamic equilibrium, even though there is no apparent change in the system?

What is K for the following reaction: HBr ⇌ H+ + Br- , if [HBr] = 0.50 M and the pH = 2.0?

What two molecules is hemoglobin designed to transport?

The equilibrium constant, K, is a measure of product concentration terms divided by reactant concentration terms.

How does the presence of a catalyst affect an equilibrium system?

In the reaction HCl ⇌ H+ + Cl- , what is the value of K if [HCl] = 0.001 M and [Cl-] = [H+] = 0.20 M?

What does the equilibrium constant represent in an equilibrium equation?

What is the value of K in the equilibrium reaction HA ⇌ H+ + A- if [H+] = 0.020 M and [HA] = 0.200 M?

When does the body utilize anaerobic respiration?

What is another name for the equilibrium constant?

In the following reaction: HA ⇌ H+ + A- , what will the pH value be if [HA] = 0.150 M and K = 5.2 × 10-9?

Why are poisons always an organic or inorganic compound?

What is the value of K in the reaction HA ⇌ H+ + A- if [HA] = 0.001 M and [A-] = [H+] = 0.020 M?

What is the equilibrium expression for the reaction HA ⇌ H+ + A- ?

Understanding Our World With Chemistry

Matter: Properties, Changes and Measurements

Understanding Atoms

Bonding and Reactions

Chemistry of Bonding: Structure and Function of Drug Molecules

Aqueous Solutions: Part I

Aqueous Solutions: Part II

Organic Chemistry and Polymers

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Introduction to Biochemistry

Filters

What happens to the hemoglobin's ability to transport oxygen (O₂) when carbon monoxide (CO) is bound to it?

In the following reaction: HA ⇌ H⁺ + A^- , what is the pH value if [HA] = 0.300 M and K = 1 × 10^-5?

What is the value of [HAc] in the reaction HAc ⇌ H⁺ + Ac^- , if the K = 47.0 and the [H] = 0.350 M?

What is [HA] in the reaction HA ⇌ H⁺ + A^- , when [H⁺] = 0.23 M and K = 1.8?

What is K for the following reaction: HBr ⇌ H⁺ + Br^- , if [HBr] = 0.50 M and the pH = 2.0?

In the reaction HCl ⇌ H⁺ + Cl^- , what is the value of K if [HCl] = 0.001 M and [Cl^-] = [H⁺] = 0.20 M?

What is the value of K in the equilibrium reaction HA ⇌ H⁺ + A^- if [H⁺] = 0.020 M and [HA] = 0.200 M?

In the following reaction: HA ⇌ H⁺ + A^- , what will the pH value be if [HA] = 0.150 M and K = 5.2 × 10^-9?

What is the value of K in the reaction HA ⇌ H⁺ + A^- if [HA] = 0.001 M and [A^-] = [H⁺] = 0.020 M?

What is the equilibrium expression for the reaction HA ⇌ H⁺ + A^- ?